实时多聚酶链反应检测支气管分泌物在涂阴结核病快速诊断中的应用
Real-time polymerase chain reaction in bronchial aspirate for rapid detection of sputum smear-negative tuberculosis
摘要
背景:实时定量PCR技术在微生物包括分枝杆菌检测领域应用越来越广泛。目的:评价在痰标本涂片抗酸染色无法获得诊断信息时(如没有痰或痰涂片阴性),RT-PCR在结核病诊断中的作用。设计:我们分析了从2006年1月至2008年4月之间连续纳入的为诊断结核病而进行的支气管分泌物RT-PCR检测的病人。所有病人均接收了计算机断层扫描(CT)、支气管镜和组织活检确诊结核病,对收集的支气管分泌物进行了微生物学和RT-PCR检测。最终的确诊基于微生物学或临床病理学的标准。结果:有136例患者最终得到了诊断结果,其中77例(包括65例培养阳性病例)诊断为结核。RT-PCR在确诊病人中的阳性率是51.9%(40/77)。与支气管分泌物抗酸染色相比,更多的病人(20.8%)通过RT-PCR被检测出来(40比20,P<0.001)。结合支气管分泌物抗酸染色和RT-PCR,77例结核确诊病例中的44例(57.1%)在几天之内被确诊。结论:支气管分泌物的RT-PCR检测在涂阴或无痰结核病人的快速诊断中是一种有用的方法。
出处
《国际结核病与肺部疾病杂志》
2011年第1期17-23,共7页
The International Journal of Tuberculosis and Lung Disease
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